五倍子
also: ごばいし
ふ
し
Meanings
1
sumac gallnut; Chinese gall
A gall produced by aphids on sumac trees, used in traditional medicine and dyeing. The reading ふし is a gikun (customary reading) for 五倍子.
Sumac gallnuts, being rich in tannins, have been used since ancient times for dyeing and medicinal purposes.